What’s the advantage to hybrids rather than pure bred dogs?

As evidenced in MANY pure breeds, there has been a lot of careless and thoughtless breeding that has led to a lot of genetic problems being rampant. Liver shunts, renal disease, blindness, deafness, bad backs, elbows, hips and so on are often the result. The dogs suffer, the owners are heartbroken, and everyone loses.
Since many genetic problems require that both parents carry the faulty gene in order to pass it on, if you’re breeding 2 distinctly different breeds you can eliminate a lot of that. For example with Juvenile Real Disease… which is what stole my poodle Moses; JRD requires both parents to carry the gene to pass it on and thank God Labradors don’t get it. So even though Moses died of it, his pups are safe. If I had bred him with a poodle it could have been devastating.
This is one reason why I require my pups to be spayed or neutered before they can breed. With them being half poodle, they might carry the disease but won’t get it. They could however, pass it on to their pups if they were bred with a poodle who was also a carrier. Sadly, there is no test yet to prove who carries it and who doesn’t, so we must act on the side of caution.
The same is true of other genetic issues, so in eliminating them through hybridizing we can guarantee healthier dogs who will live longer and happier lives. This is what’s known as “hybrid vigor”.